Number Range

This function block provides an easy-to-use horizontal range slider to define a pair of numeric bounds (minimum and maximum). It is useful for creating reusable numeric ranges that can control thresholds, sizes or parameters across your scenario.

📥 Inputs

Minimum Provide a number to override the lower bound. (Optional)

Maximum Provide a number to override the upper bound. (Optional)

📤 Outputs

Range The current min-max pair is output as a numeric range (two values). This output is marked as multiple and can be consumed by blocks that expect numeric inputs.

🕹️ Controls

Min - Max A text label that shows the current numeric pair.

Range Slider A horizontal slider widget you drag to set the lower and upper limits interactively.

(hint) If an input is connected to Minimum or Maximum, that value overrides the corresponding end of the slider.

🎯 Features

• Real-time interactive control: adjust both ends of the range with a single slider.

• Input overrides: connecting numbers to the inputs will update (and clamp) the slider range automatically.

• Multiple output format: the range is provided as a pair so it can be used directly by other blocks.

• Simple visual feedback: the label displays the current values so you always know the active limits.

⚙️ How it runs

• If no external inputs are connected, the block uses the values set on the Range Slider and shows them on Min - Max.

• When a number is connected to Minimum or Maximum, that value takes effect and the slider range updates to reflect the new bounds.

• The block continuously outputs the current bounds via Range so downstream blocks receive the latest pair.

📝 Usage Instructions

1. Drag the block into your scenario.

2. Set a desired numeric interval by dragging the Range Slider handles.

3. Optionally connect numbers to Minimum and/or Maximum to override the slider ends from other blocks or calculations.

4. Connect the Range output to any block that accepts numeric inputs to use the bounds in processing.

💡 Tips and Tricks

• Use with comparison blocks Greater and Smaller to build range checks: feed the Greater and Smaller results into All True to verify a value lies inside the range.

• Drive image processing limits (for example width/height) by connecting Range to Image Resize or Image Padding inputs to make interactive resizing workflows.

• Use with Histogram On Line or Image Threshold (via numeric inputs) to switch thresholds dynamically during inspection.

• Combine with Number Input when you want a fixed numeric override that is easy for operators to type in.

• Send the numeric pair to Scope to visualize how the range changes over time during a run.

(hint) Keep your ranges consistent: if an external input sets a minimum larger than the maximum, the block will adjust/clamp values so the slider remains valid.

🛠️ Troubleshooting

• If connected values appear not to take effect, verify the inputs are actually connected and producing numeric outputs.

• If the slider jumps or the displayed pair is unexpected, check for conflicting external inputs on Minimum and Maximum. Disconnect one to let the slider control that end again.

• If downstream blocks behave oddly, confirm they accept a two-value range and expect the same order (min, max).